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STABILITY ANALYSIS FOR DIFFERENT PLANT DENSITIES IN DETERMINATE AND INDETERMINATE SOYBEANS

Pushpendra, Kamendra Singh

Affiliations

¹Deptt. of Genetics and Plant Breeding, GB.P.U.A. & Tech., Pantnagar 263145, India

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Cite article:- Pushpendra, Singh Kamendra (2025). STABILITY ANALYSIS FOR DIFFERENT PLANT DENSITIES IN DETERMINATE AND INDETERMINATE SOYBEANS. Agricultural Science Digest. 20(3): 162-164. doi: .

ABSTRACT

Twenty soybean varieties (determinate/semideterminate/indeterminate) were evaluated
for stability under four plant densities, viz., 60 x 15cm, 60 x 5cm, 30 x 15 cm and 30 x 5 cm.
Their mean squares due to variety x environment (linear) were significant, indicating that there
were genetic differences among the varieties for regression values. Considering all the three
parameters of stability IX, band S2di), the soybean varieties PK416, PK963, PK471, PK262
and PK327 were stable and ideal varieties as these showed high mean yielcl with unit regression
and least deviation. However, PK472, PK564, PK515 had high mean, b value greater than 1
and non-significant deviation from regression, indicating good response to better environment
(spacing i.e. 30 x 15 cm). Determinate and semi determinate genotype responded similarly at
normal as well as close planting whereas, indeterminate cultivars performed better at normal as
well as higher spacing.

KEYWORDS

REFERENCES

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